This upright 208/220V/60Hz Model U410 premium ultra-low temperature laboratory freezer utilizes traditional 5.1in (130mm) thick polyurethane insulation to achieve and maintain ultra-low temperatures of - 86°C. The powder coated, scratch and rust resistant exterior is 18 gauge steel with a thickness of 1.2mm and the interior is top-quality, polished 304L stainless steel. The heated air vent with a spring-assisted plunger clears ice build-up and prevents vacuum formation. It has a front-mounted air filter that is easily accessible by quarter turn screws and two pass-through access ports measuring 3/4in each with a 20mm diameter. Feet have heavy-duty, lockable casters. The Model U410 has a programmable temperature control system with a temperature range from -50°C to -86°C, in 1°C increments, even at ambient temperature up to 32°C. It is operated by a microprocessor-controlled temperature and alarms with non-volatile memory. The display features large, bright, digital LED characters that measure 1/2in (1.3cm) high, mounted at eye level on uprights. Factory-installed RS-485 port with optional BioCommand® SFI software monitors multiple freezers simultaneously for optional remote monitoring. The battery back-up activates alarms and displays temperature during power outages. A separate on-off switch provided for cleaning/servicing/thawing. Refrigeration is provided by a hermetically-sealed, two-stage cascade system with adequate capacity to cope in high-ambient conditions. Low-noise, heavy-duty compressors are commercially-available. Requires just one fan for circulation, resulting in reduced power consumption and noise. Refrigerants are CFC-free and HCFC-free, and the compressor lubricants are biodegradable and commercially available high-performance, synthetic polyolester oil that prevent ‘oil-logging’. Monitoring and alarms are controlled by S.M.A.R.T. Plus™ diagnostic software that is built into the control panel to provide fault codes to trace and solve system errors. Remote alarm contacts provide connection to external user-supplied alarm/monitoring systems. Visual alarms include high/low temperature, power out, system fail, battery low, filter clean, and fault analysis, with a LED lamp for remote control operation. Audible alarms include high/low temperature, power out, and system fail. The Model U410 upright freezer also features a molded handle with a built-in removable lock. A powerful cam-action/reverse cam-action latch provides one-handed operation to pull the door firmly closed and push the door open. Latch clicks to indicate proper closure. It contains five compartments with four adjustable-height, stainless-steel shelves (additional shelving available separately). The Model U410 has five inner insulated doors with stainless-steel hinges that unscrew for defrosting/cleaning. Cabinet and outer door are insulated and fitted with low temperature seals on outer door. Covered by a five year warranty, with two years on parts and labor and an additional three years covering parts. Freezer Type: Upright. Model Number: U410. External Material: 18 Gauge Steel. Exterior Thickness: 1.2mm. Insulation Material: Polyurethane Foam. Insulation Thickness: 5.1in (130mm). Interior Material: 304L Stainless Steel. Capacity: 14.5cu-ft (410L). External Dimensions (H x W x D): 75.4 x 31.5 x 33.5in (191.5 x 80 x 85.2cm). Internal Dimensions (H x W x D): 49.8 x 21.7 x 22.6in (126.5 x 55 x 57.5cm). Maximum Box Capacity (2in, 3in, 4in Boxes): 238, 180, 120. Temperature Range: -50°C To -86°C At Ambient Temperature Of +32°C. Electrical Requirements: 208/220V/60Hz. Weight: 518Lbs (235kg). Eppendorf® #: U9260-0002.